Best Prime Minister: ICM
| End Date | Company | Client | CON | LAB | OTH | DK | Lead |
| 01 Dec 2017 | ICM Online | Guardian | 40 | 32 | 28 | +8 | |
| 08 Oct 2017 | ICM Online | Guardian | 41 | 32 | 27 | +9 |
| End Date | Company | Client | CON | LAB | OTH | DK | Lead |
| 01 Dec 2017 | ICM Online | Guardian | 40 | 32 | 28 | +8 | |
| 08 Oct 2017 | ICM Online | Guardian | 41 | 32 | 27 | +9 |